The Three Kings Monument in the centre of the old city of Chiang Mai portrays Phya Mangrai; in the centre; planning the new city of Chiang Mai with his royal friends Phya Ramkhamhaeng of Sukhothai and Phya Ngam Muang of Phayao.

King Mangrai (1239-1311) was the 25th King of Ngoen Yang (r.1261-1296) and the first King of Chiang Mai (r.1296-1311); capital of the Lanna Kingdom (1296-1558). Wat Phra Singh or to give it its full name; Wat Phra Singh Woramahaviharn; was first constructed around 1345 by King Phayu; 5th king of the Mangrai Dynasty.